Wye, Kenneth R. The encyclopedia of Shells / Kenneth R. Wye. - New York : Facts on File, 1991. - 288 p. : col. ill. ; 29 cm. Includes bibliographical references (p. 288) and indexes. ISBN: 0816027021 Subjects--Topical Terms: Shells--Pictorial works.Shells--Identification. LC Class. No.: QL404